feat: add data_version column to t_events and t_meal_plan for version tracking

New_eCalendar/25_大日历多设备登录/大日历多设备登录.sql

--- 设备设备码表
+-- 设备设备码表
@@ -58,6 +58,12 @@ alter table
 
 
 
+alter table t_events
+    add data_version bigint null comment '数据版本号';
+
+alter table t_meal_plan
+    add data_version bigint null comment '数据版本号';
+
 -- 删除不必要的数据
 DELETE
 FROM t_user_device_codes